Grammar and expression problem

Please kindly check and correct my little writing. If possible, try to rephrase my sentencses and give me some advice(based on my meaning) to make it sounds more natural and smooth in English speaking. Thanks!

"Knowing that there is something bad happened in your family, I feel so sorry and upset for you. Dear, I just don't know what I can do for you that you think it's good. Sometimes, I want to talk to you, but worrying that would become a disburb and would recall all your unpleasant memories, so I chose to keep silent. I know you have your own faith and religious to face all this adverties and difficulties in life, but whenever you need us, you know that we are always here, just voice out and we'll do our best for you."